H-optimal controller synthesis for dithered systems

Chia Yuang Chang, Ciann Dong Yang, Chin E. Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper a novel design algorithm is proposed to synthesize an H-optimal observer-based controller for a multivariable system under multiplicative nonlinear time-varying perturbation. It is shown that optimal robustness and performance can both be attained, by using the technique of H-optimization theory and by applying dither to smooth the nonlinearity. The exact solution of the model-matching problem induced by the stability criterion is solved by noninterative computation method of H-norm, allowing the optimal H-controller to be expressed explicitly in terms of a free parameter, the dither amplitude, which is shown, here, as the dominant parameter on adjusting the gain of the H- optimal controller in order to obtain high performances and to guarantee stability, simultaneously.

Original languageEnglish
Title of host publicationProceedings of the American Control Conference
PublisherPubl by American Automatic Control Council
Number of pages6
ISBN (Print)0780302109, 9780780302105
Publication statusPublished - 1992
EventProceedings of the 1992 American Control Conference - Chicago, IL, USA
Duration: 1992 Jun 241992 Jun 26

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


OtherProceedings of the 1992 American Control Conference
CityChicago, IL, USA

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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